Smoke box structure for locomotives



March 13, 1934.

Filed Dec.

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V V V T. E. CANNON ET AL SMOKE BOX STRUCTURE FOR LOCOMOTIVESSheets-Sheet 1 ll/l/ 1 ////I ll l/l/l/l/ /////I ll/l Null IwM-a March13, 1934. T. E. CANNON ET AL I SMOKE BOX.STRUCTURE FOR LOCOMOTIVES FiledDec. 51, 1931 3 Sheets-Sheet 2 ,[7w arm/@715, ZZQWME 670171.920

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Ilnllllllll/ T. E. CANNON ET AL SMOKE BOX STRUCTURE FOR LOCOMOTIVESFiled Dec.

3 Sheets-Sheet 3 Patented Mar. 13, 1934 UNITE STATES SMOKE BOX STRUCTUREFOR LOCOMOTIVES Thomas E. Cannon, Pittsburgh, and Charles F. Krauss,Ambler, Pa.

Application December 3 Claims.

The object of our invention is to construct the smoke-box of alocomotive so that a pocket will be formed in one side thereof, intowhich can be placed an air-pump or other piece of machinery connected tothe locomotive, so as to provide a view for the engine crew which willnot be obstructed by an air-pump or other piece of machinery projectinglaterally from the locomotive at the smoke-box.

In the accompanying drawings:

Fig. 1 is a transverse sectional view through a smoke-box illustratingour invention;

Fig. 2 is a side view of the smoke-box, showing the pocket or recess,and illustrating an air-pump in dotted lines secured in said recess;

Fig. 3 is a detached perspective view of the shell forming the pocket;

Fig. 4 illustrates a modification in which the pocket is formed in anintegral cast steel casing of the smoke-box; and

Fig. 5 is another modification showing the shell which forms the pocketsecured to the casing by a welded butt-joint.

1 is the smoke-box casing of a locomotive, cut away at one side as at 2.3 is the shell of a pocket,

"shaped as shown in Fig. 3. The depth of this pocket is sufficient toallow an air pump A or other piece of machinery to be secured therein,so as to be substantially flush with the outer portion of the shell ofthe locomotive or the lagging of the boiler. The shell has an upperflange 4 which laps over the casing 1 of the smoke-box above the opening2 and also has a flange 5 at the lower end, which overlaps the casing 1of the smoke- .box below the opening 2, and at each side of the shellare flanges 66, which overlap the casing at each side of the opening 2.These flanges are connected so as to form a continuous flange whichoverlaps the casing, and the upper portion of the shell is preferably inthe form of an arc, although'it may be of any shape desired. The back '7of the shell is preferably vertical and the upper end of the shell isinclined as at 8. Formed integral with the back '7 are lugs 9 located aconsiderable distance above the bottom of the shell,

' 'and lugs 10 are formed on a depending portion 11 of the shell, asclearly shown in Fig. 1. These lugs have threaded openings therein forthe reception of the bolts 12 which secure the air-pump V I A firmly tothe shell. The shell is of sufficient thickness and rigidity to rigidlysupport the airpump. If mechanisms other than air-pumps are to besecured in the pocket X formed by the shell, the lugs may be placed insuch position as to provide means for firmly securing the mech- 1, 1931,Serial No. 584,254

anism Within the pocket and to the shell. The flanges 4, 5 and 6 arepreferably welded to the casing at 13, the weld extending entirelyaround the flanged portion of the shell, but it will be understood thatthe flanges 4, 5 and 6 may be riveted to the casing or may be rivetedand welded Without departing from the essential features of theinvention.

The shell in the present instance is preferably made as an integralsteel casting, and, being made in one piece, it reinforces the casing ofthe smoke-box and it does not project a sufi'icient distance into thesmoke-box to interfere with the mechanisms of the locomotive located inthe smoke-box. The shell may also in some instances provide a means forfirmly attaching such mechanisms firmly in the smoke-box by casting lugs9a at the back of the shell, as shown in Fig. 1 and securing them to thelugs.

In some instances the pocket may be formed integral with the shell ofthe smoke-box as shown in Fig. 4, and instead of the shell havingflanges which overlap the casing of the smoke-box, the shell may haveportions 5a which abut against the casing la as shown in Fig. 5 and thetwo parts may be welded together.

We claim:

1. The combination of a casing of the smokebox of a locomotive having anopening in one side thereof; a shell located in said opening anddepressed to form a pocket therein, the shell having a substantiallyvertical back portion the upper part of which extends outwardly at anangle of approximately 45 forming a partial cover for an accessorylocated within the pocket and secured to the back portion of the shell.

2. The combination of a casing of a smoke-box of a locomotive, having anopening in one side thereof; an integral cast shell located in theopening, being depressed to form a pocket, the shell having a flangeextending around the pocket and welded to the casing, said shell havinga depending portion at the bottom; lugs on the depending portion towhich an air-pump can be secured; and lugs projecting into the pocketfrom the back of the shell, to which an accessory can be secured.

3. A smoke-box for a locomotive, having a pocket in the side thereof forreception of a locomotive accessory, the upper end of said pocketextending outwardly over and forming a partial covering for saidaccessory.

4. A smoke-box for a locomotive, having a pocket in the side thereof forreception of a locomotive accessory, the upper end of said pocketcovering for said accessory, and means on the unright wall of the pocketfor attaching the accessory including 2, depending portion and a lip forsupporting a portion of the Weight of said accessory.

THOMAS E. CANNON. CHARLES F. KRAUSS.

